Spring-clamp.



A. A. KRUMPELMANN.

' SPRING CLAMP. APPLICATION FILED SEPT. 30. m5.

1,200,953. Patented 0012.10, 1916.

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* UNITED STATES oFFIoE. 1

ALBERT A; KBUMPELMANN, OFjST. PAUL, MINNESOTA.

I SPRING-CLAMP.

To all whom it may concern:

Be it known that I, ALBERT A. KRUMPEL- MANN, a citizen of the United States, residing at St. Paul, in the county of Ramsey and State of Minnesota, have invented a new and useful Improvement in Spring- Glamps, of which the following is a specification. 7

My invention relates to improvements in a spring clamp for holding fillers, pads and filler books, one of the primary objects of which is to eliminate the use of the ordinary pasteboard tongue and cloth binding which it has been customary to use on the fillers and pads. I

A further object of my invention is to provide a clamp .with a gripping jaw which engages under spring tension the filler or pad when the tongue of the clamp is inserted in a backing or book cover.

My invention further provides means for holding the filler against lateral and l0ngitudinal movement in the cover book or backing.

In the drawings which form part of the specification: Figure 1 is a perspective of the spring clamp A and a detail of a filler book B in position to be inserted into the clamp A. Fig. 2 is a perspective of a check book cover C with the filler book B held in place by the clamp A. Fig. 3 is a side elevation of the clamp A. Fig. 4 is a sectional detail view of the backing or cover book 0 illustrating the clamp A holding the filler B in position on the back C. Fig. 5' is front view of the clamp A illustrating an alternative construction.

The clamp A is formed from a single piece of material, preferably of spring metal and has a tongue 2 and a back 3 bent upward at right angles to the tongue 2 and a forwardly extending jaw 4 which is bent so as to form an acute angle with the back 3. The jaw 4 extends in the same direction as the tongue 2 from the back 3. The outer end of the jaw 4 is turned downward toward the tongue 2 to form a gripping or biting edge 5.

In use the clamp A takes the place of the pasteboard tongue and cloth binding which has heretofore been used on filler books, pads, etc., thus reducing the manufacturing expense of the fillers and pads which can be simply stapled or held together in any Specification of Letters Patent.

Patentedpct. 10,1916.

Application filed September 80, 1915. Serial No. 53,473.

other suitable way when used in connection with the clamp A.

The filler B is inserted into the clamp A from the side as illustrated in Fig. l and then the tongue 2 is inserted into the pocket 6 of the backing or cover C forcing the wall 7 of the pocket 6 between the filler B and the clamp tongue 2, thus causing. the jaw 4 to engage the filler or pad under spring tension and hold it rigid in the cover book as illustrated in Fig. 4.

It is obvious that the gripping edge 5 will prevent the filler B from being removed from the clamp A without considerable force.

nate the movement of the fillers and pads they have been impractical and expensive, thus making them prohibitive in use with pads and fillers. The simplicitv of the clamp A and the elimination of the ex ense of tongue and binding of the fillers adds to the material value of the clamp A.

While I have illustrated mv clamp on an ordinary check book cover and check filler book I do not wish to confine mv invention to this particular use but desire to have it understood that it can be carried out in other means and applied to other devices within the sco e of the following claims.

What I claim is:

1. In a device for holding fillers in combination with a cover or backing for s id fillers a pocket in said co er f r remova lv receiving a clamp. said clamp (omorisin r means formed from a sin le niece of material for receiving and ri idlv gripping a filler to hold the same in said cover against longitudinal removal. when said clamp is in position in said p cket.

2. In a device for holding fillers in combination with a cover or backing for said fillers, a pocket in said cover for removab ly tongue whichis adapted -t0 lie-insertedinto receiving a clamp, said clamp being formed said tongue, whereby said clamp is adapted from 'a' single piece of"materialf havingfa jto'jlgrip-a-fiileriwhen said tongue is inserted 1.0

into said pocket and hold said filler against said pocket a back extending upward at lateral and longitudinal movement.

right angles t0;,S2LfidtOIIgUB HQjHAV .benteto" LIZALBERT AJT'KRUB IPELMANN. form an acute angle With said back and eX- Witnesses:

tending forwardly therefrom, ,haviii'g its" M. J; CLARK,

outer edge serrated and turned down towan E.-NELSON.

" Copies of t fi is patent xnax obtained for cents eacl gfi a ddressing fhp (G i ib of h Washi'ngfbfifDI-Ui a i 

